Question: How many students attended the University of Hanover on January 1, 2013?
Paraphrase: What was the numbeer of students that attended the University of Hanover on January 1, 2013?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q678982 p:P2196 ?s . ?s ps:P2196 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2013')) }